Railway rail connection scheme determination method based on analytic hierarchy process and multi-level fuzzy evaluation

Abstract

The invention relates to a railway track connection scheme determination method based on analytic hierarchy process and multi-level fuzzy evaluation. The method comprises the following steps: S1, determining the number k of station yard track connection schemes; s2, analyzing w elements which influence the track connection scheme selection, and establishing analytic hierarchy models which are respectively a target layer, a criterion layer and an index layer; s3, constructing a judgment matrix in each layer; s4, determining the weight of each element by using the judgment matrix; s5, performing consistency check on the judgment matrix, and checking whether weight setting is reasonable or not; s6, determining the total weight of each element influencing the track connection scheme; s7, performing normalization processing on w elements of each track connection scheme, and constructing a fuzzy comprehensive evaluation table; s8, performing merging operation on the index layer fuzzy evaluation matrix and the element weight of the layer to obtain a criterion layer comprehensive evaluation matrix; and S9, carrying out merging operation on the fuzzy evaluation matrix of the criterion layer and the element weight of the layer to obtain a comprehensive evaluation matrix of the target layer, sorting the orbit connection schemes, and determining an optimal orbit connection scheme.

Description

technical field [0001] The invention relates to the field of railway engineering, in particular to a method for determining an optimal railway connection scheme based on hierarchical analysis and multi-level fuzzy evaluation. Background technique [0002] Usually, when a new railway is connected to an existing line, there will be several connection schemes according to the general situation of the existing railway and various influencing factors; among them: each connection scheme has different advantages and disadvantages, and the advantages and disadvantages of each scheme are compared and the best The determination of the scheme is generally in the form of a comparison table of advantages and disadvantages. However, when there are many alternatives and many influencing factors, the comparison of advantages and disadvantages is highly subjective, and it is impossible to achieve an objective and comprehensive synthesis of each scheme. Therefore, how to quickly and accuratel...

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Problems solved by technology

[0002] Usually, when a new railway is connected to an existing line, there will be several connection schemes according to the general situation of the existing railway and various influencing factors; among them: each connection scheme has different advantages and disadvantages, and the advantages and disadvantages of each scheme are compared and the best The determination of the scheme is generally in the form of a comparison table of advantages and disadvantages. However, in the case of many alternatives and many influencing factors, the comparison of advantages and disadvantages is highly subjective, and it is impossible to achieve an objective and comprehensive synthesis of each scheme. evaluation, and then it is difficult to accurately select the optimal connection scheme; therefore, how to quickly and accurately obtain the best connection scheme for a variety of different connection schemes has become an urgent technical problem to be solved

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